There's a bug report filed in debian against qemu, https://bugs.debian.org/1107288 - saying kvm on ppc does not work on debian (anymore) due to qemu requesting unrealistic (non-existing) page size of 64K on a host which only has 4K.
I don't know much about PPC, - what's the issue here? Should qemu use the same page size for kvm as on the host? Thanks, /mjt